Greetings from the new Guy.

Been an active follower of the LSX stuff now for quite some time. Always a lurker, however I've taken the next step and have finally begun the process of an LSX conversion.

Have been looking at an LSX swap into a second gen camaro now for quite some time. However, there is a lot of swapping of parts required to make these fit in the low hooded cars. (special low intake, different accessories, etc). I plan on swapping the car over eventually, but since I don't have any actual experience doing any of these conversions, I thought I'd make my first one extremely easy, and convert my daily driver truck to LSX technology.

1986 GMC K10 (pictures to follow). Originally equipped with your standard 350, 4 speed setup. Rides like a brick sh*t house, but its a real work truck, and has several thousand kilo's under its belt.

What I bought - A wrecked 2004 silverado with a 5.3 (VIN T). I removed everything from it in my driveway, tank, engine, wiring, etc.

I plan on mating the 5.3 to my current 4 speed trans in the truck (since gear ratio is perfect, no OD required). I know of the .400 thicker flywheel I must purchase. I know the bellhousing bolts up less one bolt.

I have a tbi tank in the truck with the low pressure (15psi) pump that I plan on taking out, to put in place a walbro pump. The truck was also a single fuel line, so I plan on the vette regular. Still mistified on the plumbing though;really don't want to run rubber hose if I can avoid it.

Wiring will be outsourced to mod the original wiring harness. Already running electric fans, expense spared.

Plan on using holley mounts to keep the trans located in the stock location. This is important so the driveshafts will not need to be modified.

My one hurdle, which I can't find a sticky on, is the exhaust. When I removed the engine from the 04 silverado, I kept the manifolds, y pipe, and full exhaust. While I don't want to use the muffler/tailpipe, I would like to use the manifolds and Y pipe (with converter on both sides intergrated). From what I can tell, to do so would be a very tight fit. I'm a little wary if even the manifolds will fit.

Anyone with experience in the 4by's trucks done this? Does the frame require clearancing? I really don't want headers (just another added expense). Using the stock exhaust would save a lot of fitting and cost, plus it'll keep me emissions legal. I've got no crossmembers to worry about since the engine x-member is at the front of the engine, and tranny x-member is behind the trans, under the x-fer case. Any info would be great. I'll be posting pictures when I get home.